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US 6,463,832 B1Granted
Capped head hammer
AssigneeVaughan & Bushnell Manufacturing Company
InventorMichael L. Cox
Life of this patent
Estimating the term…
Abstract
A hammer having a hammer head and a cap removably slidably fitted to the hammer head. A biasable pad for absorbing shock is positioned between the cap and the hammer head. A cross-pin connects the cap and hammer head while permitting slidable movement therebetween.
Claims60
A hammer including a handle, comprising
- a hammer head having a longitudinal dimension including a cylindrical poll;
- cap means for providing a selected type of cap impact face for said hammer head, said cap means being removably fitted over said poll, and further includes a cylindrical cap that forms a cylindrical cap chamber defined by a longitudinal cap side wall and a cap front wall transverse to said cap side wall, said cap front wall including said cap impact face and an opposed cap interior chamber face, said cap chamber having an aperture opposed to said cap interior chamber face, said poll being slidably fitted to said cap means in said chamber;
- fastening means for removably securing said cap means to said poll and for allowing said poll to move relative to said cap means in the longitudinal dimension between an impact mode position of said cap impact face against a work object and a static mode position of said cap impact face remote from the work object, and
- cylindrical biasable pad means for absorbing shock to said hammer head during the impact mode and for self-biasedly returning said pole from the impact mode position to the static mode position, and said biasable pad being positioned within side cap means between said cap impact face and said poll;
- said poll having a poll front surface spaced from said cap interior chamber face, and said biasable pad means being positioned therebetween;
- said biasable pad being positioned between said poll front surface and said cap chamber interior face, and being movable between a biased mode and an unbiased mode, wherein in the impact mode said biasable pad is in the biased mode and in the static mode said biasable pad has been self-biased to the biased mode;
- wherein said poll moves longitudinally toward said cap interior face at the impact mode and said poll front surface is pressed against said biasable pad, wherein said biasable pad is moved a longitudinal distance into the biased mode;
- and wherein said fastening means includes said poll forming a poll pin hole transverse to the longitudinal direction, and said cap side wall having a pair of opposed cap pin holes in general alignment with said poll pin hole, and said fastening means further includes a cross-pin extending through said poll pin hole and removably connected to said cap at said pair of opposed cap pin holes.
5 more elements
An improved vibration damping hammer tool for attachment to a handle, and being of two-piece construction, comprising:
- a cap having a bore, and being connected to a poll, of a hammer head, having a clearance cross-aperture, a concealed shock absorbing/resilient pad disposed between said cap and said head of said hammer, a cross-pin of a cross-section smaller than that of said clearance cross-aperture for providing movement of said cross-pin, and being anchored to said cap for securing said cap to said hammer head so that in a static mode said pad is maintained under some compression;
- and wherein when said cap is struck against a workpiece and moves into an impact mode said pad is compressed further and restores said cap to said static mode while maintaining said pad in compression with a single hammer strike so that contact is continually made between said cap and said poll through the compressed shock absorbing/resilient pad.
A hammer for connection to a handle, comprising a bored cap connected to a poll of a hammer head provided with an oversized cross-hole, a removable, replaceable resilient pad in said bore of said cap;
- a cross-pin sized to freely move within said cross-hole, and anchored to said cap for maintaining said cap and hammer as a single unit, whereby in a static mode said pad is under compression;
- and upon said cap striking an object in an impact mode said pad is further compressed, and restores said cap in said static mode while maintaining said pad in compression with a single hammer strike so that contact is continually made between said cap and said poll through the compressed resilient pad.
A hammer comprising:
- a handle;
- a head connected to said handle;
- a cap slidably connected to said head;
- a fastener adapted to permit slidable movement of said cap relative to said head;
- a resilient pad disposed between and in contact with said head and said cap.
2 more elements
A hammer comprising:
- a handle, a head connected to said handle, said head having a longitudinal axis and further comprising a poll and an aperture through said head, said aperture having an axis perpendicular to said longitudinal axis, a cap defining a cavity and being slidably connected to said poll, a resilient pad disposed between said cap and said poll.
A hammer comprising:
- a handle;
- a head means for supporting a removable cap means, said head means being connected to said handle and having a longitudinal axis;
- a cap means for providing a selected type of impact face for said head means, said cap means slidably engaging said head means;
- fastening means for connecting said cap means to said head means;
- and
- pad means disposed between said head means and said cap means for absorbing shock to said cap means when said hammer is used to strike an object with said cap means.
3 more elements
Dependencies are inferred from the claim text.